fix: fix complete after some special expr.

[He1pa]

fix complete after some special expr. No symbol will be added after these expressions.

1. Does this PR affect any open issues?(Y/N) and add issue references (e.g. "fix #123", "re #123".):

• N
• Y fix [Bug] No completion items for the string variable in the right side of the if compare condition expression #1618

[Peefy]

Good Job! LGTM!

[coveralls]

Pull Request Test Coverage Report for Build 10792356825

Details

• 17 of 18 (94.44%) changed or added relevant lines in 1 file are covered.
• 2 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.01%) to 70.56%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
kclvm/sema/src/advanced_resolver/node.rs	17	18	94.44%

Files with Coverage Reduction	New Missed Lines	%
kclvm/ast/src/ast.rs	1	71.36%
kclvm/tools/src/LSP/src/tests.rs	1	98.6%

Totals
Change from base Build 10791472429:	-0.01%
Covered Lines:	51217
Relevant Lines:	72586

---

💛 - Coveralls